In Shin Megami Tensei V Vengeance, it's your job to save the world, including all the humans and demons that live within it.
Shin Megami Tensei V: Vengeance | 100% Demon Compendium [Includes all DLC]
Demons, I’ve found, are the most demanding creatures in SMT V Vengeance. Some ask for trivial things like a colossal omelette, but others, like Mermaid, have a genuinely troubling request: help her Mermaid sisters break a curse. In The Cursed Mermaids and The Demon of the Springs, you’ll embark on a journey to help this Demon and hopefully regain her trust and Essence. In this guide, I’ll show you how to find and defeat Pazuzu and Anahita to complete the Mermaid quest in Shin Megami Tensei V Vengeance.
To start Demon of the Spring, you must first complete The Cursed Mermaids in Shin Megami Tensei V Vengeance. This quest can be picked up south of Hamamatsucho Leyline Fount in Minato Ward. To complete this quest, defeat Pazuzu to break the curse.
You can find Pazuzu in the Tokyo Tower Leyline Fount, an area that can only be reached after defeating Hydra. Pazuzu is located in the southwestern part of this area, but can only be reached after going down a long slope.